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Calcium is important for both men and women. It is also important for infants, children, and teens. Everyone needs calcium, before birth and throughout life. Children and teenagers need calcium to develop strong bones and teeth. Adults need it to have a strong skeleton.

A. TrueB. False

3. If you don't get enough calcium in your diet, your body will take the calcium it needs from your bones.

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Your body takes calcium from the foods you eat. If you’re not getting enough calcium, your body will take the mineral from your bones.

A. TrueB. False

4. Everyone needs the same amount of calcium.

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The amount you need depends on your age and gender. The National Academy of Sciences offers these guidelines for calcium:

5. The most important time of life to get enough calcium is when you are:

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During these years nearly half of adult bone mass is formed. Adolescents in this age group need 1,300 mg of calcium each day.

A. 1-4 yearsB. 5-10 yearsC. 9-18 yearsD. 50 and older

6. A good exercise for building strong bones is:

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Walking, jogging, and aerobic dance are good for building strong bones because they are weight-bearing exercises. Swimming and bicycling are good for your cardiovascular health, but they are not weight-bearing exercises.

A. SwimmingB. JoggingC. Bicycling

7. Calcium is found in which of these foods?

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You can find calcium in many foods, not just dairy products like milk, cheese, and yogurt. Leafy green vegetables such as broccoli and collard greens are good sources of calcium. Tofu made with calcium sulfate is also a good source. Other good sources are canned sardines and salmon, if you eat the soft bones.

A. BroccoliB. AlmondsC. Dairy productsD. SardinesE. All of the above

8. Bone density usually is at its highest when you are:

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You can help keep bone loss to a minimum after this age by getting enough calcium and vitamin D. You can also keep your bones strong by exercising and by not smoking and not drinking too much alcohol.

A. 18 years oldB. 25 years oldC. 30 years oldD. Between 30 and 35 years old

9. The strength of your adult bones mostly depends on how much calcium you consumed before age 18.

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That’s why it’s important that children get enough calcium, particularly between the ages of 9 and 18.

A. TrueB. False

10. Your bone mass and skeleton become weaker as you age.

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But you can take steps to cut back on the loss of bone mass by getting enough calcium in your diet. You should also do weight-bearing exercise.